node.js - Mongo Timed Out While Many Queries in Nodejs -


i facing problem while executing huge number (thousands) of async queries mongo getting following error 

throw er; // unhandled 'error' event       ^ mongoerror: connection 4 localhost:27017 timed out

i tried different values of connection options increasing , decreasing them still getting error

the connection code part in app.js

var mongooptions = {     sockettimeoutms: 0,     connecttimeoutms: 0,     keepalive: true,     reconnecttries: 30,     poolsize: 10 };  mongoose.connect(config.mongo_db_moj_connection, mongooptions).then(function () {     console.log('connected mongo'); }, function (err) {     //err handle });

try

{  keepalive: 0, connecttimeoutms: 0}

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